ADU Contractors near Riverside, CA
Peck General Construction
18734 Lilac Street, Hesperia, CA 92345
35.6 miles
Peck General Construction builds ADUs in Orange County, Los Angeles & Inland Empire. Services include garage conversions, detached backyard cottages & granny flats. Full-service from permits to final inspection under a Design-Build model.
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Okopod
307 North Euclid Way, Anaheim, CA 92801
30.9 miles
Okopod's 215 ft² backyard studio ADU features a dual pitch standing seam roof, Natural Thermowood cladding, aluminum doors, a full bathroom, and an anthracite grey pergola with adjustable louvres and slab flooring.
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The ADU Builder Inc
3639 Atlantic Avenue, Long Beach, CA 90807
46.3 miles
Los Angeles ADU contractor The ADU Builder offers 10+ years of experience in ADU construction, garage conversions, JADUs, custom homes & remodels. They guide clients through design, permits, financing & building with quality craftsmanship.
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Joseph Construction
4695 MacArthur Ct, Newport Beach, CA 92660
32.6 miles
Joseph Construction Builders LLC is a licensed detached ADU builder in Newport Beach & Costa Mesa, CA, with 30+ years of experience. Services include detached ADUs, garage conversions, JADUs, and home additions across Orange County.
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JDB Builders - Riverside
11801 Pierce Street, Riverside, CA 92505
0.9 miles
Building an ADU in Riverside takes 8–16 months. JDB Builders guides homeowners through design (1–3 months), permitting (2–4 months), construction (4–8 months), and final inspections (1–2 months) for granny flats, garage conversions, and more.
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Rost Architects
8855 Research Drive, Irvine, CA 92618
28.3 miles
Plan your ADU project with expert guidance. Rost Architects covers key factors like setbacks, height limits, floor area, utilities, and local guidelines to help homeowners avoid costly mistakes and build compliant, well-designed accessory dwelling units.
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San Gorgonio Builders
529 North 41 Street, Banning, CA 92220
27.1 miles
San Gorgonio Builders is a licensed General B contractor near Banning, CA, with 40+ years of experience. Specializing in ADU construction, garage conversions, custom homes, and remodeling across Riverside, San Bernardino, Orange, and Los Angeles Counties.
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MyADU4Less
579 West County Line Road, Calimesa, CA 92320
18.8 miles
MyADU4Less is a Southern California ADU builder specializing in prefabricated accessory dwelling units. Offering models from 160–1,200 sq ft, they handle design, permitting, and construction. CalHFA grants up to $40,000 may apply.
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SDS Homes
42400 Winchester Road, Temecula, CA 92590
34.2 miles
SDS Homes Construction is a Temecula, CA design-build contractor specializing in ADUs, granny flats, and Casitas. They offer turnkey services from design to permitting and construction, serving Temecula and Murrieta homeowners.
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Bergstrom Construction Inc.
10232 I Avenue, Hesperia, CA 92345
34.8 miles
Bergstrom Construction Inc. builds custom ADUs in Apple Valley, Victorville & Hesperia. Serving San Bernardino County, they offer in-law suites, backyard cottages, home offices & garage additions tailored to High Desert homeowners.
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Fontana General Contractors
14189 Foothill Boulevard, Fontana, CA 92335
13 miles
Fontana General Contractors builds custom ADUs, including detached units, garage conversions, and in-law suites. They handle permits, zoning, and full construction management, helping property owners add value and flexible living space.
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Build ADU Home Remodel
4780 West Mission Boulevard, Montclair, CA 91762
19 miles
Build ADU Home Remodel is a trusted, licensed general contractor serving homeowners throughout the Inland Empire with full-service ADU construction. Whether you're looking to add rental income, house extended family, or increase your property value, we build ADUs that meet your needs and exceed your expectations.
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DYM Builders
2372 Morse Avenue, Los Angeles, CA 92614
31.5 miles
DYM Builders is an ADU contractor in Los Angeles & Orange County, CA, offering design, permitting & construction services for detached ADUs, garage conversions, attached units & tiny homes since 2016.
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Beach Builders Custom Homes
13001 Seal Beach Boulevard, Seal Beach, CA 90740
40.8 miles
Beach Builders Custom Homes offers full-service ADU and garage conversion services in Los Angeles and Orange County. From permits to construction, they build granny flats, backyard cottages, and JADUs with smart home tech, earning homeowners $1,200–$1,600/month.
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ADU's by Design
3600 Lime Street, Riverside, CA 92501
3.4 miles
ADU's by Design is an Inland Empire ADU contractor serving Riverside & San Bernardino County. They offer full-service accessory dwelling unit design & construction, including detached ADUs, garage conversions, remodeling & architectural design.
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Other cities in California
What you need to know
ADU Contractors in Riverside, CA: Building in the Inland Empire's Largest City
Riverside, California, the seat of Riverside County and one of the largest cities in the Inland Empire, has seen a significant surge in Accessory Dwelling Unit (ADU) construction in recent years. As housing demand continues to grow in Southern California, Riverside homeowners are increasingly turning to experienced ADU contractors to maximize their property's potential. With its mix of historic neighborhoods, spacious lots, and a relatively lower cost of living compared to coastal cities, Riverside presents unique opportunities for ADU development.
Riverside ADU Regulations and Permitting Requirements
Before breaking ground, ADU contractors in Riverside must navigate the city's specific zoning and building codes. Riverside follows California's statewide ADU laws while also enforcing local ordinances. Key regulations include:
- Maximum ADU size: Detached ADUs can be up to 1,200 square feet, while attached ADUs are limited to 50% of the primary dwelling's square footage.
- Setback requirements: A minimum 4-foot rear and side yard setback is required for most ADU types.
- Height limits: Detached ADUs are generally limited to 16 feet in height, though this can vary by zone.
- Owner-occupancy: As of 2020, California state law removed owner-occupancy requirements, giving Riverside homeowners more flexibility.
- Parking: In many cases, no additional parking is required for ADUs located near public transit or within certain zones.
Types of ADUs Built by Riverside Contractors
Experienced ADU builders in Riverside are well-versed in constructing a variety of unit types to suit different property configurations and homeowner goals. Common ADU types in Riverside include:
- Detached ADUs: Standalone structures built in the backyard, ideal for Riverside's larger residential lots.
- Attached ADUs: Units added directly to the existing home, sharing at least one wall.
- Garage Conversions: Converting existing garages into livable space, a popular and cost-effective option.
- Junior ADUs (JADUs): Units up to 500 square feet created within the existing home's footprint.
Why Hire a Local ADU Contractor in Riverside?
Hiring a local ADU contractor in Riverside, CA offers distinct advantages. Local professionals are familiar with the City of Riverside's Building and Safety Division permitting process, which helps streamline approvals and avoid costly delays. They also understand the region's climate considerations, including the hot summers typical of the Inland Empire, ensuring proper insulation and energy-efficient design that meets California's Title 24 energy standards.
Costs and Investment Value of ADUs in Riverside
The cost of building an ADU in Riverside typically ranges from $100,000 to $300,000 depending on size, type, and finishes. Given Riverside's growing rental market and proximity to UC Riverside and major employment centers, a well-built ADU can generate significant rental income, making it a smart long-term investment for homeowners throughout the city.